CN207801948U - A kind of CDR digital broadcasting transmitters - Google Patents
A kind of CDR digital broadcasting transmitters Download PDFInfo
- Publication number
- CN207801948U CN207801948U CN201721096021.3U CN201721096021U CN207801948U CN 207801948 U CN207801948 U CN 207801948U CN 201721096021 U CN201721096021 U CN 201721096021U CN 207801948 U CN207801948 U CN 207801948U
- Authority
- CN
- China
- Prior art keywords
- cdr
- casing
- dial
- liquid crystal
- crystal display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
The utility model discloses a kind of CDR digital broadcasting transmitters, including casing, the front of the casing is equipped with loudspeaker, liquid crystal display, several control buttons, fm dial and volume control knob, reception antenna is installed at the top of the casing, FM CDR are installed in the casing and receive controller, main control board and driving battery, the reception antenna connects the FM CDR and receives the reception that controller realizes CDR digital signals, demodulation and decoding, the main control board connects the FM CDR and receives control, loudspeaker, liquid crystal display, control button, fm dial and volume control knob；Fm dial and fm dial are responsible for controlling the frequency that FM CDR receive controller reception, and loudspeaker play out decoded digital audio, and liquid crystal display is used to show that FM CDR to receive the business datum that controller is demodulated based on radiofrequency signal.The CDR digital broadcasting transmitters of the design are simple in structure, and easy to operate, production cost is low, are suitable for wide popularization and application.
Description
Technical field
The utility model is related to digital TV Broadcasting Techniques field, specially a kind of CDR digital broadcasting transmitters.
Background technology
Frequency modulation frequency band digital audio broadcasting technology (CDR：China digital radio) it refers to using digital technology as base
Plinth is realized using advanced digital audio encoding, compress technique and channel error correction coding modulation technique to audio broadcast signal
Digitized processing and transmission.National news publish General Bureau of Radio, Film and Television and have promulgated China's frequency modulation frequency band digital audio broadcasting in 2013
Standard channel GY/T 268.1-2013《Frequency modulation frequency band digital audio broadcasting part 1:Digital broadcast channel frame structure, channel are compiled
Code and modulation》And multiplexing criteria GY/T268.2-2013《Frequency modulation frequency band digital audio broadcasting part 2 is multiplexed》, indicate China
The establishment of frequency modulation frequency band digital audio broadcasting technology.
Most of audiences of analog fm broadcast at present belong to vehicle-mounted user.It, will but with the digitlization of audio broadcasting
In limited transmission bandwidth, other than it can realize more set digital audio programs, additionally it is possible to be transmitted program additional information
Many digital value-added services such as content, city basic information service, urban traffic information.Therefore, based on digital audio broadcasting
Advantage, a kind of portable frequency modulation frequency band digital audio broadcasting equipment of research and development are necessary.
Utility model content
The shortcomings that in order to overcome the prior art to refer to, the purpose of this utility model are to provide a kind of CDR Digital Broadcasting Receivers
Machine, as a kind of portable frequency modulation frequency band digital audio broadcasting terminal so that citizen can enjoy frequency modulation frequency band digital audio
The high quality broadcast experience that broadcast technology is brought.
The utility model solve technical solution that its technical problem uses for：A kind of CDR digital broadcasting transmitters, including machine
The front of shell, the casing is equipped with loudspeaker, liquid crystal display, several control buttons, fm dial and volume control knob, institute
It states and reception antenna is installed at the top of casing, FM-CDR is installed in the casing and receives controller, main control board and drive
Dynamic battery, the reception antenna connect the FM-CDR and receive the reception of controller realization CDR digital signals, demodulation and decoding,
The main control board connects the FM-CDR and receives control, loudspeaker, liquid crystal display, control button, fm dial and volume
Control handle；Fm dial and fm dial are responsible for controlling the frequency that FM-CDR receives controller reception, and loudspeaker are to decoded
Digital audio plays out, and liquid crystal display is used to show that FM-CDR to receive the business number that controller is demodulated based on radiofrequency signal
According to.Wherein, business datum includes the digital value-added service such as information content, city basic information service, urban traffic information.
The FM-CDR receives controller using the N9030A PXA of moral scientific ＆ technical corporation or the Hi5210 chips of company of Haier
Realize the demodulation and decoding of radiofrequency signal.
The utility model has the beneficial effects that：The CDR digital broadcasting transmitters of the design are simple in structure, easy to operate, raw
It produces at low cost, is suitable for wide popularization and application, digital audio broadcast system and original analog AM AM and analog fm FM broadcast
System is compared, and high with spectrum efficiency, flexible Polymera transmission, covering is wide, sound quality is good, strong antijamming capability, transmitter work(
The low plurality of advantages of rate, but the terminal installation of production CDR digital broadcastings at present compares shortage, so audient is not very extensively,
The CDR digital broadcasting transmitters of the design have good economic benefit foreground.
Description of the drawings
Fig. 1 is the overall structure front view of the utility model.
Specific implementation mode
The utility model is further detailed below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of CDR digital broadcasting transmitters, including casing 1, the front of the casing 1 be equipped with loudspeaker 2,
Liquid crystal display 3, several control buttons 4, fm dial 5 and volume control knob 6 are equipped with reception day at the top of the casing
Line 7, FM-CDR is equipped in the casing receives controller, main control board and driving battery, the reception antenna 7 and connect
The FM-CDR receives controller and realizes the reception of CDR digital signals, demodulates and decodes, described in the main control board connection
FM-CDR receives control, loudspeaker 2, liquid crystal display 3, control button 4, fm dial 5 and volume control knob 6；Fm dial
It to be responsible for controlling the frequency of FM-CDR reception controller receptions with fm dial, loudspeaker play out decoded digital audio,
Liquid crystal display is used to show that FM-CDR to receive the business datum that controller is demodulated based on radiofrequency signal.Wherein, business datum
Including the digital value-added service such as information content, city basic information service, urban traffic information.
The FM-CDR receives controller using the N9030A PXA of moral scientific ＆ technical corporation or the Hi5210 chips of company of Haier
Realize the demodulation and decoding of radiofrequency signal.
As described above, the only preferred embodiment of the utility model is real when that cannot limit the utility model with this
The range applied, i.e., generally according to simple equivalence changes made by present utility model application the scope of the claims and utility model description with
Modification all still belongs in the range of the utility model patent covers.
Claims (2)
1. a kind of CDR digital broadcasting transmitters, including casing, which is characterized in that the front of the casing is equipped with loudspeaker, liquid crystal
Display screen, several control buttons, fm dial and volume control knob are equipped with reception antenna at the top of the casing, described
FM-CDR is installed in casing and receives controller, main control board and driving battery, the reception antenna connection FM-
CDR receives controller and realizes that the reception of CDR digital signals, demodulation and decoding, the main control board connect the FM-CDR and connect
Receive control, loudspeaker, liquid crystal display, control button, fm dial and volume control knob.
2. a kind of CDR digital broadcasting transmitters according to claim 1, which is characterized in that the FM-CDR receives control
Device is using the N9030A PXA of moral scientific ＆ technical corporation or 5210 chips of Hi of company of Haier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721096021.3U CN207801948U (en) | 2017-08-29 | 2017-08-29 | A kind of CDR digital broadcasting transmitters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721096021.3U CN207801948U (en) | 2017-08-29 | 2017-08-29 | A kind of CDR digital broadcasting transmitters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207801948U true CN207801948U (en) | 2018-08-31 |
Family
ID=63273909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721096021.3U Active CN207801948U (en) | 2017-08-29 | 2017-08-29 | A kind of CDR digital broadcasting transmitters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207801948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114938254A (en) * | 2022-05-05 | 2022-08-23 | 青岛广电海创文化科技有限公司 | Automatic sound box that awakens up of CDR |
| CN115209356A (en) * | 2022-06-06 | 2022-10-18 | 青岛广电海创文化科技有限公司 | CDR short message display screen, method and application |
-
2017
- 2017-08-29 CN CN201721096021.3U patent/CN207801948U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114938254A (en) * | 2022-05-05 | 2022-08-23 | 青岛广电海创文化科技有限公司 | Automatic sound box that awakens up of CDR |
| CN115209356A (en) * | 2022-06-06 | 2022-10-18 | 青岛广电海创文化科技有限公司 | CDR short message display screen, method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207801948U (en) | A kind of CDR digital broadcasting transmitters | |
| CN205232333U (en) | Possesses terminal that FM, CDR and DTMB received function | |
| KR20060066022A (en) | A system for integrate-receiving a terrestrial dmb and a satellite dmb | |
| CN102710933B (en) | DTV coding and decoding device and DTV decoding method | |
| CN200959641Y (en) | Cell-phone terminal | |
| CN201541330U (en) | 3D stereoscopic digital television | |
| CN101094342B (en) | Method and system for watching TV through collaboration between TV terminal of handset and periphery device | |
| CN2831644Y (en) | Computer receiver of compatible multi-kinds ground digital TV standards by USB interface | |
| CN103402064A (en) | Digital satellite television receiving device | |
| US20090258620A1 (en) | Terminal and Operating Method Thereof | |
| CN105450952A (en) | FM (Frequency Modulation), CDR (China Digital Radio) and DTMB (Digital Television Terrestrial Multimedia Broadcasting) receiving terminal and implementing method thereof | |
| CN201248092Y (en) | Portable receiver for GB digital television | |
| CN206042007U (en) | Frequency modulation frequency channel digital audio broadcasting automobile -mounted terminal | |
| CN101383928B (en) | Stereo control method and television applying the method | |
| CN2750604Y (en) | Ground based digital television receiving terminal with mobile feedback function | |
| CN202135233U (en) | Direct broadcasting satellite broadcasting television all-in-one machine | |
| CN209845177U (en) | 4 antenna ISDB-T television stick | |
| CN1764274A (en) | Digital videocast system capable of mobile reception | |
| CN101566731A (en) | Mobile video glasses integrated with CMMB receiving module | |
| KR100724359B1 (en) | Digital audio broadcasting receiver compatible digital tv apparatus and audio signal processing method therof | |
| CN202798952U (en) | Three module integrated liquid crystal television receiver | |
| CN201479315U (en) | Wireless multimedia signal receiver and a multimedia device comprising same | |
| CN210491086U (en) | Multichannel broadcast television signal monitoring decoding equipment | |
| CN207218959U (en) | A kind of AVS+ professional satellite television receivers for supporting double transcoding outputs | |
| CN101646024A (en) | Method and device for realizing multi-standard compatibility of mobile digital television |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |